Here we would like to draw your attention to VI34 transaction code in SAP. As we know it is being used in the SAP SD-FT (Foreign Trade in SD) component which is coming under SD module (Sales & Distribution).VI34 is a transaction code used for Preferential Customs Duty Rate in SAP.
It comes under the package VEI.
Transaction VI34 technical data table
|Purpose||Preferential Customs Duty Rate|